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Periodic Classification of Elements and Periodicity - 13
1.
Atomic radii decreases from top to bottom in a group and increases along a period.
a) True
b) False
2.
Due to the reactivity the elements shown in sub group VIIIA are called noble gases.
a) False
b) True
3.
The seven horizontal rows of the periodic table are called groups.
a) True
b) False
4.
Normal or typical elements are placed in sub-group A and transition elements are placed in sub-group B.
a) False
b) True
5.
Diamond is a good conductor of electricity and heat.
a) False
b) True
6.
In H
2
SO
4
, sulphur shown the oxidation state of +6.
a) True
b) False
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